Category:PCB PCB Manufacturing

Group Administrators: 0 | Group Member: 259 | Group Threads: 444

PCB manufacturing consists of many steps, such as PCB CAM, Panelization, Copper patterning, etc. This group is mainly talked about the problems during PCB manufacturing!

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Search Results: 441 Threads,45 Pages
4 answers
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I need a QUAD QSP-2 Question answered

I would like to freeze feeders on a global basis. I am tired of table changeovers every time I run a different board. A good example is today I ran 1 board which went well. I wanted to run a board beh... (See More)

drka
2017-02-27 23:49:28
Lebrun Bernard
2017-03-01 23:49:28
4 answers
54 views

some basic details of materials in pcb

i want to know about some basic details of materials in pcb such as CEM, FR1, FR2, FR3 and XPC.The use, advantages and also disadvantages (See More)

Alejandro Vitale
2017-02-27 23:25:19
Breton
2017-03-01 23:25:19
3 answers
62 views

ENIG or Flash

Dear all, I'm having a friendly discussion with our chief manufacturing engineer. To our PCB suppliers we specify the use of "chemical gold", imo this means we use ENIG, Our boards are all... (See More)

Dana
2017-02-27 22:46:36
Bernie
2017-03-01 22:46:36
4 answers
84 views

Leadfree Trials

All, I would like to find out what trials everyone is carrying out when evaluating Leadfree Paste. (See More)

Barlow
2017-02-27 22:41:39
James
2017-03-01 22:41:39
4 answers
83 views

Quoting

I have inherited a spreadsheet used to quote labor for assembling pc boards. There are no instructions (of course) on how to use it and it seems to be lacking in several areas. So, I was wondering if ... (See More)

Adair
2017-02-27 22:29:10
info
2017-03-01 22:29:10
4 answers
102 views

support pins for double sided boards

Hi guys, I want to improve the set up of our printing machine(EKRA) especially on a 0.5mm thickness double sided boards.I find the support pins very time consuming,any advice? thanks. (See More)

paolo.costanzi
2017-02-27 22:16:22
alvaro.anton
2017-03-01 22:16:22
5 answers
153 views

PPS caps degrading value

we have recently been having trouble with our PPS capacitors on a couple of our boards. these boards are RoHs and the Parts are RoHs compliant. these boards first run through our reflow then a batch w... (See More)

saulius.devyzis
2017-02-27 21:51:04
quintendesmyter
2017-03-01 21:51:04
4 answers
101 views

Cleanliness: Cross Contamination of Flux

We've configured SMT and Wave lines such that each line can run either No-Clean and Water soluble process. As we are doing cleanliness study, an observation is there may be cross contamination when we... (See More)

selcukbircan
2017-02-27 21:41:02
Robin Moons
2017-03-01 21:41:02
4 answers
195 views

Checking reflow ovens

Is it common to check your reflow ovens proper operation with a separate system ? We check our ovens weekly with a DataPaq Surveyor. In 10 or so years of Data collection, I have never witnessed ... (See More)

Csaba Simon
2017-02-27 21:40:13
Luc Vercruysse
2017-03-01 21:40:13
4 answers
87 views

Materials Specifications for Thermal PCBs

When choosing materials, do you specify your thermal PCB needs? For instance, are you specifying temperature or are you selecting materials by brand name? (See More)

vampire
2017-02-27 19:19:55
john brooks
2017-03-01 19:19:55
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Search Results: 441 Threads,45 Pages